AttachCcnInstances

Last Updated At: 2026-08-02 00:06:16

1. Interface Description

Interface request domain name: vpc.api3.convergecloud.com.

This API (AttachCcnInstances) is used to load network instances into CCN instances, which include VPCs and Direct Connect gateways.

The number of network instances that can be associated with each CCN is limited. For details, refer to the product documentation. If expansion is needed, contact the online customer service.

Default interface request rate limit: 100 times per second.

Interface update time: 2019-05-30 20:12:15.

The interface only verifies the signature but does not authenticate.

2. Input Parameters

The following list of request parameters only lists interface request parameters and some public parameters, For a complete list of public parameters see public request parameters.

Parameter name Required Allow NULL Type Description
Action Yes No String Public parameter, The value of this interface: AttachCcnInstances
Version Yes No String Public parameter, The value of this interface: 2017-03-12
Region No No String Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
CcnId Yes No String CCN instance ID, e.g., ccn-f49l6u0z.
Example: ccn-gree226l
CcnUin No No String UIN of CCN (root account). The default is the UIN of the current account.
Example: 100000072292
Instances Yes No Array of CcnInstance Associated Network Instance List
Example:View

3. Output Parameters

Parameter name Type Description
RequestId String Unique request id, Each request will return. The RequestId of the request needs to be provided when locating the problem.

4. Error Code

The following lists only the error codes related to the interface business logic, For other error codes, see public ErrorCode.

Error Code Description
LimitExceeded Exceeded the limit
ResourceNotFound The resource does not exist
UnsupportedOperation.CcnAttached The instance is already associated with a CCN.
UnsupportedOperation.UnableCrossBorder Cross-border is not supported.
UnsupportedOperation.UinNotFound The account ID does not exist.
InvalidParameterValue.CcnAttachBmvpcLimitExceeded The number of BM VPCs associated with the specified CCN has reached the upper limit.
UnsupportedOperation.UnableCrossFinance The current CCN cannot be associated with Finance Cloud instances.